IP Library › Granted Patent US 4,712,704
Granted Patent Utility
US 4,712,704 · App. 07/016,345

Self-sealing closure

Inventors: Douglas P. Ramsey, Michael J. O'Brien
Patented Case View Patent ↗
Granted: Dec 15, 1987 Filed: Feb 19, 1987
Inventors
Douglas P. Ramsey
Michael J. O'Brien

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Quick Facts
Patent No.
US 4,712,704
App. No.
07/016,345
Filed
1987-02-19
Granted
1987-12-15
Kind
A